Tag
leader-election
- Dec 19, 2025 Cron Triggers, Misfire Policy, and the Runs That Never Happen Turning a recurrence expression into at-most-one job per period, choosing what to do with slots missed during downtime, and why a schedule that never fires is invisible without an external expectation. backend systems
- Nov 25, 2025 Raft Elections: Terms, Votes, and the Pre-Vote Correction How terms impose a total order on leadership attempts, why the voted-for rule plus the log-suffix check prevents two leaders in one term, and what pre-vote and check-quorum add. distributed systems
- Oct 21, 2025 Leader Failover: Detection Windows, Fencing, and Split-Brain Avoidance How a failed leader is detected, why a timeout cannot distinguish a dead leader from a slow one, and how fencing tokens stop two leaders from accepting writes. databases
- Nov 18, 2024 Leader Election, Leases, and What Quorum Protects Against Why a control plane needs a single active writer, how lease-based election bounds the overlap window, and where the underlying consensus store changes the guarantee. virtualization